Picture of Nikolaus Weselik

Nikolaus Weselik


CMS Reich-Rohrwig Hainz
Rechtsanwälte GmbH
Gauermanngasse 2
1010 Vienna
Languages German, English

Nikolaus Weselik is a partner at CMS in Vienna and heads the team specialising in property and construction law. He has more than 20 years of experience as a practising attorney and advises national and international clients on construction law, property, project development and hotels as well as contentious matters, including arbitration and dispute proceedings.

Since many years, he regularly holds seminars on construction and property law and is the author of several books on aspects of national and international construction contract law. Nikolaus Weselik is recommended by international legal directories as a leader in the fields of construction and property law.

more less

Nikolaus Weselik is a market-leading construction lawyer, frequently involved in high-stakes disputes arising from prominent construction projects. He also advises on construction contracts and real estate transactions. Clients state that he is "someone who works on a very high legal and intellectual level" and is "reliable." Clients also say: "It was fun to work with him even on a project that was quite tricky and tense at times."

Chambers Europe 2017

The ‘highly professional’ Nikolaus Weselik heads the team.

Legal 500, 2017

He is “one of the foremost construction lawyers” in Vienna, according to peers.

Who is Who legal 2015

Clients say: "He is knowledgeable, reliable and flexible, with a great overview and sound experience."

Chambers Europe 2015


  • 1995 - Doctor of Laws, University of Vienna
  • 1990 - Master of Laws, University of Vienna
more less


  • Austrian Bar Association
  • Austrian Society for Construction Law
more less


  • Handbuch des internationalen Bauvertrags (Handbook of International Construction Contracts, German publication), Linde 2015
  • Handbuch Claim Management (Handbook of Claims Management, German publication), Linde 2012
  • Praxisleitfaden Der österreichische Bauvertrag (Best Practice Guide for the Austrian Construction Contract, German publication), Linde 2011
  • Der österreichische Bauprozess (The Austrian Construction Process, German publication), Linde 2009
  • Das Bauarbeiterkoordinationsrecht (Construction Workers Coordination Law, German publication), Linde 2002
  • Zu den Auswirkungen der Insolvenz eines ARGE-Gesellschafters auf nicht vollendete Bauvorhaben (On the effects on an unfinished building project of a consortium shareholder becoming insolvent, German publication), bau aktuell September 2016
more less


Show only
Five-Star ad­vice
Bro­chure Ho­tels & Leis­ure
On firm ground
Bro­chure Real Es­tate
Lit­ig­ate. Ar­bit­rate. Re­solve.
Bro­chure Dis­pute Res­ol­u­tion
Op­por­tun­it­ies and Risks Presen­ted by Pr­op­Techs – Aus­tria’s...
CMS Guide to Build­ing In­form­a­tion Mod­el­ling (BIM)
Plan­ning delays in con­struc­tion con­tracts
e-Guide Green Lease Clauses in Europe – a prac­tic­al...
CMS an­nounces first pan-European stand­ard green lease...
Claim Man­age­ment Hand­book
Best Prac­tice Guide for the Aus­tri­an Con­struc­tion Con­tract
CMS pan-European study in­to “green” lease clauses
On the in­ter­pret­a­tion and bur­den of proof of bank guar­an­tees...